The cover picture shows a perspective view of the crystal structure of a double helix formed from two oligomeric molecular strands of pyridine heterocycles connected through carboxamide functions. The color coded strands are shown in stick representations with solvent accessible surfaces. The folding of these oligomers into single helical conformations and their association into double helices held by hydrogen bonds and stacking interactions are described in detail by Lehn and Huc et al. on p. 2810 ff.(We thank C. Caroli from the Visual Design Softwareentwicklungs GmbH, Karlsruhe, for assistance in the preparation of the cover picture.)
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.